As light-rest-4j is the first framework supported, we have more Restful examples than any other style of microserivces. All rest examples can be found at https://github.com/networknt/light-example-4j/tree/master/rest

Most example applications consist multiple services and only petstore is a single service which is described in getting started

The rest of examples are used in tutorial and you can follow them step by step into the details.